Just like other models, euro cylinder locks are available in a number of different types. Here are some of the principal ones:
Half Euro Cylinder
Half euro cylinders are a shorter model. They are designed for locations where key access is required from one direction only - for example, garage doors. They are also known as single euro cylinders.
Double Euro Cylinder
Double euro cylinders are so-called because they feature keys at both ends, so they can be locked and unlocked from either side. This provides a greater level of security.
Nowadays, double euro cylinders are principally used on uPVC doors. These models are also known as full euro cylinders.
Thumb-Turn Euro Cylinder Locks
Thumb turn locks require only thumb pressure to release them, allowing speedier operation than conventional locks in emergency situations.
Thumb-turn euro cylinders are available in two varieties. These are full models, which combine a keypad on one side and with a key lock on the other, and half models, which feature a keypad only.
Anti-Snap Euro Cylinder
Euro cylinder anti-snap locks are a reinforced model designed to resist lock snapping - a burglary technique in which a tool is used to apply force to a lock in order to break it open. The technique exploits a weak spot at the centre in some models of cylinder lock. Determined burglars sometimes go to the extreme of applying a blowtorch to the surrounding door in order to expose the lock.
Anti-snap euro cylinder locks feature an incision, called a sacrificial snap line, along their outer casing. If a burglar applies force, this snap line will break but the central locking mechanism will remain intact. This design is available from major lock brands like Yale.